Evidence for the suppressed decay B(-)→DK(-), D→K(+)π(-).

Published

Journal Article

The suppressed decay chain B(-)→DK(-), D→K(+)π(-), where D indicates a D(¯)(0) or D(0) state, provides important information on the CP-violating angle ϕ(3). We measure the ratio R(DK) of the decay rates to the favored mode B(-)→DK(-), D→K(-)π(+) to be R(DK)=[1.63(-0.41)(+0.44)(stat)(-0.13)(+0.07)(syst)]×10(-2), which indicates the first evidence of the signal with a significance of 4.1σ. We also measure the asymmetry A(DK) between the charge-conjugate decays to be A(DK)=-0.39(-0.28)(+0.26)(stat)(-0.03)(+0.04)(syst). The results are based on the full 772×10(6) BB(¯) pair data sample collected at the Υ(4S) resonance with the Belle detector.

Full Text

Duke Authors

Cited Authors

  • Horii, Y; Trabelsi, K; Yamamoto, H; Adachi, I; Aihara, H; Arinstein, K; Aulchenko, V; Aushev, T; Balagura, V; Barberio, E; Belous, K; Bhuyan, B; Bischofberger, M; Bozek, A; Bračko, M; Browder, TE; Chang, M-C; Chang, P; Chen, A; Chen, P; Cheon, BG; Chiang, C-C; Cho, I-S; Cho, K; Choi, Y; Doležal, Z; Eidelman, S; Feindt, M; Gaur, V; Gabyshev, N; Garmash, A; Golob, B; Ha, H; Haba, J; Hayasaka, K; Hoshi, Y; Hou, W-S; Hsiung, YB; Hyun, HJ; Iijima, T; Inami, K; Ishikawa, A; Itoh, R; Iwabuchi, M; Iwasaki, Y; Iwashita, T; Joshi, NJ; Julius, T; Kang, JH; Kawasaki, T; Kichimi, H; Kiesling, C; Kim, HJ; Kim, HO; Kim, MJ; Kim, YJ; Kinoshita, K; Ko, BR; Kobayashi, N; Korpar, S; Križan, P; Kuhr, T; Kumar, R; Kwon, Y-J; Lee, MJ; Lee, S-H; Li, J; Liu, C; Liventsev, D; Louvot, R; Matyja, A; McOnie, S; Miyabayashi, K; Miyata, H; Miyazaki, Y; Mohanty, GB; Moll, A; Mori, T; Muramatsu, N; Nakano, E; Nakazawa, H; Natkaniec, Z; Neubauer, S; Nishida, S; Nitoh, O; Ohshima, T; Okuno, S; Onuki, Y; Pakhlov, P; Pakhlova, G; Park, CW; Park, HK; Pestotnik, R; Petrič, M; Piilonen, LE; Poluektov, A; Prim, M; Prothmann, K; Röhrken, M; Ryu, S; Sahoo, H; Sakai, Y; Schneider, O; Schwanda, C; Schwartz, AJ; Senyo, K; Seon, O; Sevior, ME; Shapkin, M; Shebalin, V; Shen, CP; Shibata, T-A; Shiu, J-G; Simon, F; Smerkol, P; Sohn, Y-S; Solovieva, E; Stanič, S; Starič, M; Sumihama, M; Sumiyoshi, T; Suzuki, S; Tanaka, S; Teramoto, Y; Uchida, M; Uehara, S; Uglov, T; Unno, Y; Uno, S; Usov, Y; Varner, G; Vinokurova, A; Vossen, A; Wang, CH; Wang, P; Watanabe, M; Watanabe, Y; Wicht, J; Won, E; Yabsley, BD; Yamashita, Y; Zander, D; Zhang, ZP; Zhulanov, V; Zupanc, A; Belle Collaboration,

Published Date

  • June 10, 2011

Published In

Volume / Issue

  • 106 / 23

Start / End Page

  • 231803 -

PubMed ID

  • 21770499

Pubmed Central ID

  • 21770499

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.106.231803

Language

  • eng